NWS coastal zone LMZ521

Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI weather alerts

Marine alerts linked to this verified National Weather Service zone.

NWS feedSource unavailableThe current alert state is unknown. Last successful check: Sep 7, 2026, 3:00 AM UTC.

Current answer

Active alert check

Current status unknown

NWS updates are unavailable, so this service cannot confirm whether Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI has no active alerts.

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Official zone ID: LMZ521
Zone type: coastal
State: Marine or multi-state area
Metadata verified: Yes, from NWS

Context only

Recently ended alerts

Ended Official severity: Minor

Marine Weather Statement for Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI; Green Bay south of line from Oconto WI to Little Sturgeon Bay WI

Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI, Green Bay south of line from Oconto WI to Little Sturgeon Bay WI

Ended Sep 3, 2026, 4:30 PM UTC

Ended Official severity: Minor

Marine Weather Statement for Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI; Rock Island Passage to Sturgeon Bay WI; Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM offshore to mid lake

Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI, Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM offshore to mid lake, Rock Island Passage to Sturgeon Bay WI

Ended Aug 22, 2026, 7:15 PM UTC

Ended Official severity: Minor

Small Craft Advisory for Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI; Rock Island Passage to Sturgeon Bay WI

Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI, Rock Island Passage to Sturgeon Bay WI

Ended Aug 23, 2026, 3:00 PM UTC

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